Shoe upper



FIG. 1 is a top and right front perspective view of a shoe upper showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a top plan view thereof.

The stippling indicates areas of color different from the light and dark areas of the shoe upper as shown. The broken-line showings of a shoe sole and toe cap are environmental only and form no part of the claimed design. 

The ornamental design for a shoe upper, substantially as shown and described. 